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61 lines
2.3 KiB
Python
61 lines
2.3 KiB
Python
import os
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import re
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from django.db import migrations, models
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from django.db.backends.base.schema import BaseDatabaseSchemaEditor
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from django.db.migrations.state import StateApps
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attachment_url_re = re.compile(r"[/\-]user[\-_]uploads[/\.-].*?(?=[ )]|\Z)")
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def attachment_url_to_path_id(attachment_url: str) -> str:
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path_id_raw = re.sub(r"[/\-]user[\-_]uploads[/\.-]", "", attachment_url)
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# Remove any extra '.' after file extension. These are probably added by the user
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return re.sub(r"[.]+$", "", path_id_raw, flags=re.MULTILINE)
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def check_and_create_attachments(apps: StateApps, schema_editor: BaseDatabaseSchemaEditor) -> None:
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STREAM = 2
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Message = apps.get_model("zerver", "Message")
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Attachment = apps.get_model("zerver", "Attachment")
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Stream = apps.get_model("zerver", "Stream")
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for message in Message.objects.filter(has_attachment=True, attachment=None):
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attachment_url_list = attachment_url_re.findall(message.content)
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for url in attachment_url_list:
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path_id = attachment_url_to_path_id(url)
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user_profile = message.sender
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is_message_realm_public = False
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if message.recipient.type == STREAM:
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stream = Stream.objects.get(id=message.recipient.type_id)
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is_message_realm_public = (
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not stream.invite_only and stream.realm.domain != "mit.edu"
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)
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if path_id is not None:
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attachment = Attachment.objects.create(
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file_name=os.path.basename(path_id),
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path_id=path_id,
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owner=user_profile,
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realm=user_profile.realm,
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is_realm_public=is_message_realm_public,
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)
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attachment.messages.add(message)
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class Migration(migrations.Migration):
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dependencies = [
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("zerver", "0040_realm_authentication_methods"),
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]
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operations = [
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# The TextField change was originally in the next migration,
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# but because it fixes a problem that causes the RunPython
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# part of this migration to crash, we've copied it here.
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migrations.AlterField(
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model_name="attachment",
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name="file_name",
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field=models.TextField(db_index=True),
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),
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migrations.RunPython(check_and_create_attachments, elidable=True),
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]
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